/* 
* Express.js Session示例
*/

//导入Express模块
const express=require("express");
//导入Session模块
const session=require("express-session");
//创建Express应用
const app=express();
//Express http服务端口
const port=3001;

//使用session中间件
app.use(session({
    secret:"secret key",
    resave:false,
    saveUninitialized:false,
}));

//http访问路径
app.get("/",function(req,res){
    let body="";
    if(req.session.views){
        req.session.views+=1;
    }else{
        req.session.views=1;
        body+=`<p>第一次访问</p>`;
    }
    res.send(`${body}<p>已访问<strong>${req.session.views}</strong>次</p>`)
});

//启动Express服务
app.listen(port,function(){
    console.log(`MyApp访问地址：http://127.0.0.1:${port}`);
});